Reenabled key exchange connection limiter test for macos. #2089

Job	Run time
Format	6s
Audit dependencies	24s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-gnu)	1m 15s
Clippy (x86_64-unknown-linux-gnu, false, true)	51s
Build and test (beta, ubuntu-latest, x86_64-unknown-linux-gnu)	1m 5s
Clippy (armv7-unknown-linux-gnueabihf, true, false, -target arm-linux-gnueabihf -mcpu=generic+v7a...	30s
Smoke-test fuzzing targets	3m 50s
Build and test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	1m 16s
Clippy (x86_64-unknown-linux-musl, true, false, -target x86_64-linux-musl)	54s
Smoke-test fuzzing targets (--all-features)	3m 56s
Validate man pages	16s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-musl)	1m 15s
Clippy (x86_64-apple-darwin, true, false, -target x86_64-macos-gnu -g)	29s
Build and test (stable, macos-latest, aarch64-apple-darwin)	1m 37s
Build and test (stable, ubuntu-latest, --all-features, x86_64-unknown-linux-gnu)	1m 11s
Check unused dependencies	51s
Build and test (msrv, ubuntu-latest, --all-features, x86_64-unknown-linux-gnu)	1m 21s
Validate configs	31s
Build and test (stable, ubuntu-latest, --all-features, x86_64-unknown-linux-musl)	1m 14s
Build and test (stable, macos-latest, --all-features, aarch64-apple-darwin)	1m 2s
	23m 54s

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